Rick Riordan Books

Red Pyramid

By Rick Riordan, Orpheus Collar

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The Demigod Diaries

By Rick Riordan

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Three short stories in the form of diary entries, plus interviews, puzzles, and games, reveal new insights into the world of Percy Jackson and the other heroes of Olympus.

The Sea of Monsters Percy Jackson and the Olympians Book 2

By Rick Riordan

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Percy Jackson and the Olympians, Book Four: Battle of the Labyrinth, The-Percy Jackson and the Olympians, Book Four

By Rick Riordan

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Kane Chronicles, The, Book One: Red Pyramid, The-Kane Chronicles, The, Book One

By Rick Riordan

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Percy Jackson and the Olympians Hardcover Boxed Set

By Rick Riordan

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.